阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。
Many students may feel     (stress) because of their parents. Most parents have good intentions,       some of them aren’t very helpful with the problems their sons and daughters have in    (adjust)to college, and a few of them seem to go out of their way to add to their children’s       (difficulty).
For one thing, parents are often not aware of the kinds of problems their children face. They don’t realize that the     (compete) is stronger, that the required standards of work are        (high), and that their children may not be prepared for     change. They may be upset by their children’s poor grades. At their kindest, they may     (gentle) ask why John or Mary isn’t doing better, whether he or she is trying as hard as he or she should, and so on. At their worst, they may threaten      (take) their children out of college or cut off living expenses.
Sometimes parents think it right and natural that they determine     their children do with their lives. They forget that everyone is different and that each person must develop in his or her own way.